Lubrication



J. BIJUR LUBRICATION VOct. 13, 1936.

Filed June 2, 1954 Paienied oci. 13, 1936 72,056,950;

UNITED STATES PATENT OFFICE LUBBICATION Joseph Bijur, deceased, late of New York, N. Y., by George Bijur, executor, New York, N. Y., assignor to Auto Research Corporation, a corporation of Delaware Application June 2, 1934, Serial N0. 728,719

29 Claims. (Cl. 184-7) The present invention relates to remote constructure, with the measuring valves, particulartrol lubrication and is concerned primarily with ly, Where the latter are adjacent or at the bearsystems and installations, and the constituent ings. To assure eiective seating of the relief elements thereof, for lubricating one or more valves. it is preferred to employ means for elimbearings on Va machine or group of machines. mating solid particles of dirt and chips from the 5p from a readily accessible point or points of conlubricant before the latter reaches the relief trol.Y The invention has its preferred application valves, whereby the oil is free of solid particles to the lubrication of all or most of the bearings in its ilow from the source of pressure to the on the chassis of a vehicle, such as an automobile plunger, but is propelled at suflicient speed to or motor truck. voperate the measuring valve. 10

An object is to provide a reliable lubricating In the accompanying drawing in which are installation, more particularly for motor vehicles, shown some of various possible embodiments of the use of which shall notrequire the exercise of the several features of the invention,

any selective discretion, but in which following Fig. l is a diagrammatic View of one form of l5 the simplest of manipulations, predetermined chassis installation, 15 charges of lubricant may be distributed at a p1u- Fig. 2 is a detail view, partly broken away, of rality of bearings, whether tight or loose, without the pump employed in Fig. 1, overflow. y Fig. 3 is a view in longitudinal crosssection Another object is to provide apparatus of the of one form of a measuring valve, above type, the constituent parts of which shall Figs. 4, 5 and 7 are alternative forms of meas- 20 be simple and durable in construction, easy to uring valves, install, and unlikely to becomeV out of order even Fig. 6 is a transverse sectional view taken along after prolonged use. the line B-B of Fig. 5,

The invention is primarily concerned with pres- Fig. 8 shows several of the valves of Fig. 3 consure lubricating systems, that, is, with systems in nected in series to a drip plug outlet to another which desired charges of oil are forced under bearing or returning to the reservoir,

pressure into the bearings'. A Fig. 9 shows a, longitudinal sectional view of It may be noted that where in a system of this a check valve which may be employed, and

type, oil is forced from a pump past a plurality Fig. 10 shows a measuring valve in longitudinal of relief valves in parallel to corresponding bearsection which may be used at the end of the ings, unless the resistance to pressure of each line line. from the pump to a bearing, including the re- In Fig, 1 is shown a diagrammatic view of a sistances of said bearing and of the relief valve chassis lubricated by the hand or automatically.V in the line, is substantially uniform, lubricant operated pump 9, shown in Fig. 2. The outlet l0 is likely to be forced, first through the line of least of the pump 9 is connected through a lter I I to 3'5 resistance' so that pressure is relieved therea. single pipe or header 36 extending across theV through, and disproportionate Charges of oil from chassis which, in turn, feeds pipes or mains 31 andv the pump cylinder may be supplied to different 38 on either side of the chassis and running bearings, SOme Overowing and Others r'eeivng lengthwise thereof. Measuring valve appliances 40 too little foil. N, such as shown in Figs. 3 to 7, aresupplied from 4h By this invention, there is provided an arrangethese pipes, to lubricai-,e bearings on the frame mem .for Ovemcmlg this Objectiqn' In one and exible branches 39 lead to similar measurembodiment of the invention, a lubricant measing Valve appliances for the bearings on the axles',

uring valve is' associated preferably with each i referabl Solid metal' tubin bearing, to assure a supply thereto,'upon operathe plpm'g be ng p y g tion, of the predetermined measured quantity of lubricant." The measuring elements may be in, Patent No. 1,632,772 granted on the 14th day of the form of automatic pressure-operated measur- July 1927* ing Vave The pump illustratively shown in F1g. 2 com- To assure the regula-r functioning of the lubri- PflSeS a Cyhlldel 40 Wlthln which 1s a piston il cant measuring elements, it is preferred to mainmaintained normally in. DllInP-dlSChagmg D051- tan the lubricant lines from the pump to the tion by the expansion 0f a COl SlJlllg 92. The bearings nued with oil at alitimes. This result cylinder is connected to or cast integral with a is accomplished by the use of pressure-operated pump reservoir 43 communicating at the bottom relief .valveswhich may be associated in a unitary through a check -valve 44 of any `appropriate con- 55 constructed and arranged as shown in detail in 45:

struction, and the usual outlet check valve is provided near the outlet of the pump.

If oil carrying solid particles were supplied to the bearings, the check valves to be hereinafter described, by which the lines are maintained full, might be rendered inoperative by lodging a particle of dirt which` may prevent complete seating of the valve. o

' This difficulty is remedied by the provision of appropriate filtering means adjacent the pump as. indicated at in Fig. 1 to intercept solid par# Since, as heretofore noted, it is desired Vin the present system to cause the oil to enter the p cylinder of the gas engine and thus the comticles.

bearings under pressure, it 'is'pr'eferred to Aemploy a filter of relatively low resistance, so that with the application of moderate pressures` at the and in the length of the line. Y

The pump of Fig. 2 may be charged by compression to store energy in spring 92, the expansion of which eects the discharge. The prolongation of the piston stem 93 extends into a cylinder 94 through a stuffing box- 95 and carries a piston'head 96 movable in said cylinder The lower end of the upper or charging cylinder is provided with a boss 91 to which is attached a pipe 98 connected at itsropposite end to the top of one of the gas engine cylinders99. A two-way valve |00 normally connects the charging cylinder with atmosphere, as shown, Vand may be Lturned by hand or automatically ati desired intervals to connect said charging cylinder with the engine cylinder. The check valve |0| in the line adjacent the engine cylinder allows thepassage of compressed gas from the engine to the charging cylinder, while preventing reverse fiow from the Y charging cylinder during the suction stroke of theengine cylinder.

'Y The piston stem 93Y continues up throughan aperture |02 in the cover of the charging cylinder and its end is provided with a handle |03by which the pump may be manually charged, if de.

sired, or required. f

In the chassis of Fig. 1Y there are shown measur- "W ing valveappliancesN (shown in detail in Figs. 3

to 10) disposed inthe run of theline near'the bearings, but if desired, they may be directly connect'ecl to the bearings.

Although the measuringand checkzvalve'- fittings shown by N and C may be used at each bear-l ingB in the line, and if desired in series, as shown in Fig. 8,Y they are shown in l'ig. l connected at thev spring` shackles and spring boltsfeachA for supplying a single spring shackle orbolt; -The f two brake links upon each rearrwheel are supplied in parallel from a single measuring valve N. vAt the left `front of the vehicle is shown a VVmeasuring valve N feeding a swivel"|05' on top of the king pin, two pipes |06 and |01.; leading from:

the swivel tc adjacent bearings B on the steering knuckle and third arm respectively. A `relief valve C is preferablyrprcvided immediately in advance of each of the three bearings.

engine Thek charge passed by measuring valve N thus is divid-V ed and a portion flows past'each o f therelief ing a hole |30 drilled therethrough. A plug |3| is threaded into the bearing |32 and has a longitudinal bore |33 for the oil. The element |24 has a flange 34 clamped against plug |3| by union nut |35 in the manner shown in the drawing.

To operate the installation shown in Figs. l and 2, the two-way valve |00 is turned by the operator or automatically, whereupon the cornpression and explosion pressure on top of the gas. engine cylinder 99 is transmitted through the check valve |0| and small pipe 98 into the Vcharging cylinder 94.

The check vvalve prevents the compressed gas from returning to the pressed gas lifts the power piston head 96 to the upper end of its stroke against the resistance of spring 92.

the original position, shown in the drawing, whereupon the gas contents of the charging cylinder below the piston head escapes throughV the valve |00 to atmosphere, as spring 92 expands to urge the pump piston and power cylinder head downward in discharging the pump, while air enters through the atmospheric connection |36 at the top of the 'charging cylinder.l By locating the twoway valve below the charging cylinder and'be-Y low the top of the gas engine, as shown, any

moisture that may have been contained inthe compressed gas is free to drain out into the air through the two-way valve |00. Y

When pressure is transmitted from the pump When this has occurred, the two-l way valve is released, which is returned by its l spring (not shown) to to the mains, the ttings N will dischargeY a measured quantity of lubricant to the associated bearings B.

The appliance of Fig. 3 is arranged to feed a measured quantitythrough one outlet andthe excess to another or other bearings, past a measuring valve N or check valve C, the passage to whichr is opened after the measured charge'has been expelled. vThe measuring valve portion of this fitting, shown diagrammatically, is preferably substantially identicalV with thatof Fig. 10, which will be described in fuller detail subsequently. The piston |13 normally seals the outlet to relief valve |14 in a. nipple |15, projecting laterally from the fitting. The relief valve is exposed when the piston reaches the bottom of the stroke, so that the `excess is ejected therethrough` to the bearing.

The chassis installation herein described may also be provided with additional fittings N and/or C for supplying lubricant'at places other than those indicated in the drawing. For instance, in vehicles provided with brakes on the front wheels, as well as on the rear wheels, measuring valves or seepage fittings may be provided for the front brake links and supplied from the pressure mains in the embodiments of Fig. 1. Lubricant may also be supplied in a similar manner at the rubbing surfacerof the leaf springs.

The various constructions of ymeasuring valves herein described, are, of course, not limited in their applications in the specific relation shown in the drawing, which is largely illustrative, but each of these iittings is of general application to substantially any bearingr or bearings. In general, however, where a single pump cylinder concurrently supplies a plurality of bearings, measuring valve-appliances are preferably employed, to limit the charge to each bearing, supplying one or a series of contiguous bearings, the pump cylinder itself constitutes the master measuring element and the lines are kept full 'coY i by simple relief valve terminals, as in 'Pig'. 9, or

which may be included in the measuring valvev ured quantity of oil to several pipes in succession, which pipes lead to neighboring bearings.

This devicev consists Vof a fitting |91 having a.Y

cylindrical end closed by a cap 198 threaded to receive the inlet pipe and closed at the 4opposite end by cap |99. A spring 200 encircling piston stem 20| reacts against lneck 202 of the `fitting and urges the piston head 203 toward cap 133. The forward portion of neck 202 is formed into a valve seat 204 and the advanced end of the piston stem 20| is enlarged to form a relief valve 205 which nts on and is urged against the valve seat by the expansion of spring 200. 'The relief valve 205 is connected with a cylindrical slidel valve 206 having ports 201, 20B and 2,09, which in succession, register respectively with nipples 2|0, 2| and 2 |2 threaded for connection to kpipes which lead to the bearings. The cylinder vin which the piston head slides is provided with'a groove 2|3 extending down into the lower endA of the cylinder, through which oil enters the cylinder, so that the latter is normally filled. VAs the hollow cylindrical slide valve 206 is moved down by pressure transmitted through the oil,v

overcoming spring 200, relief valve 205 Opens and oil escapes past said valve to the chamber therebelow.

Oil passes from the chamber first through the left-hand nipple 2|0 until the motion of the slide valve closes its outlet. whereupon the next quantity' of oil passes through the port 208 into the right-hand outlet 2 H and after this is closed by further motion of the slide valve, another charge passes into the outlet 2 l2 lshown in dotted lines as behind the tting. At the end of the stroke, a conical valve 203 below the piston head enters and seals the valve seat 2li into which it ts, thus preventing further Vescape of oil. When the Vpressure in the entering line falls, .so that the spring can pushV the pistoirup,v the piston moves up and oil ows past it through the groove 2|3 in the side of the cylinder, lling the cavity below the piston head, further escape of .oil through the groove being prevented when the valve 205 at the bottom of the piston stem seals the valve seat into which it flts.

In Figs. 5 and 6 is showna measuring device for forcing measured quantities of oil to three outlets simultaneously. This device consists of a fitting block 2|5 having a cylindrical cavity 2li at one end and bored with three-longitudinal holes 2|1, and one at 2|8 of smaller diameter, as shown, communicating with the cylinder 216.

'I'he central hole 2|8 extends onlyl part way.

through the casting and contains a coil spring 2 |9 for urging upward the piston head 220 which fits into the cylinder 2|6 and to which are threaded three solid pistons 22| which ilt respectively into the three Yother holes 2|'|. Into the other end of each of the solid pistons is screwed a stem 222 carrying at its lower end a valve head 223 urged toward a stop pin 224 in the stem by a dished washer spring 225.

By reason of the yielding mount of valves 2,23, seating thereof is assured even though there be Y small irregularities in machining. The upper end of the cylinder 2|6 is closed by the threaded cap 226 having an extension 221 threaded to receive the inlet pipe, and the lower ends of cylinders Vr2li are closed by individual outlet plugs 220. A groove 229 extends down the side of the cylinder shown. substantially as in Fig. 5, and each'of'the solid pistons has a longitudinal groove 230 to. communicate with the valve chamber 23| there-Y below.

Upon application of pressure at the pump, oil depresses the piston head 220 and with it-the three solid pistons 22 I". As the latter move'down, they expel the oil within the cylinders 2|l past the now open valves 223 into chambers 237| "from which the oil passes through outlet plugs 228 to the bearings. At the end of the stroke, the piston head 220 seats upon and seals the cylinders.

2||, so that no 'more oil enters and the valves 223 seat upon the outlet plugs 228 and seal the three outlet passages, so that no further oil escapes to the bearings, the latter receiving merely the` measuredquantity. When the pressure falls sufilciently to permit the spring 2 |9 to lift the piston head, oil flows through the groove 229 at the side of the main cylinder into thecavity below the piston head. Oil further flows through grooves 230 'in the sides of the solid pistons 22| into the cavities 23| below them, so that when the piston head is at the top of its stroke, and valves 223 are seated, the space in the cylinders between the ysolid pistons and the seated valves is filledk with oll, to be delivered to the bearing for the succeeding charge.

Another form of measuring valve applianceV is shown in Fig. 7. A cylindrical pipe fitting 232 has a plurality of integral lateral voutlet nipples 233 for distribution of lubricant to thebearings and encloses a sliding piston 234 having a yielding seating end 235 similar to the relief valves already described, urged'against valve seat 236 formed integral with the fitting, by a coil spring 231 reacting against the closure plug 238, which is threaded into the end of the fitting. The piston 23| has a` plurality of measuring cavities 239 in the side thereof 'normallymain'tained out of registry lwith the outlet nipples 233, the upper ends of said cavities being normally in communication with the circumferential groove 24,0 in the fitting. A pin 24| through the fitting extends into oneY of the cavities l23.9 to retain the piston against rotary displacement.

Int-he inlet end of the fitting,preferably adjacent the valve seat',l I provide a felt plug 242 serving as a screen to prevent the entry into the fittlngofany solid particles picked up in the line, this plug being preferably backed by'a small mesh metal screen '243, to intercept any hairs released from the felt in operation.

In operation, as pressure isxapplied to the fiting, the valve 234 moves against the opposition' of spring 231 away from seat 236, interrupting communication between the groove 240 and theV cavities 239 and bringing said cavities into registry with the outlet nipples 233 through which the predetermined charge of oil in eachk cavity escapes byfgravity to the corresponding bearing. When the pressure is released, spring 231 expands, effecting returnmovement of the valve, during which lubricant flows past the open relief valve through the groove 240, to refill the cavities 239 until the valve is reseated, as shown in the drawing, to maintain the line in advance thereof filled with oil.

The measuring valve of Fig. 10 comprises a pipe fitting |31 having a transverse interior'ledge |03 affording a seat |09 for a valve ||0 provided preferably with the varnished silk or cambric and oil paper Vseating surface H Y The valve has a stem l l2 at the end of which is and somewhat into the end ci?r the cylinder,as

auf:

apiston I I3 slidable in a cylinder portion .I I4 on: a iitting section H threaded tothe i'lttingele#A ment |01.. A coil spring H5 encircles shank H2 andnormally maintains the valve I I0 againstits; seat |09. A groove H1 in the cylinder H5 allows the entry Vof the lubricant when theappliance is in the idle position showrrin the drawingLinto the'chamber H8 between piston-head H3 'andl seated reliefvalve H0. The valvestem 4H2 is Vprovided with a longitudinal groove I I9 terminating between the ends of the stem through which the lubricant can pass when the valve is unseated in operation.

In advance of the pistonrl I3 at the intake end` of the fitting, I provide straining means to intercept any solid particles picked up in the line. In this embodiment, is shown a` straining means comprising a disk |20 of felt. Preferably anextremely fine-wire Y mesh screen I2| is disposed behind the felt disk |20 ,and is clamped againstV the retaining shoulder |22 by pressure Vtrans` mitted through the felt |20 from .thesplit ring,

|23, which retains the strainer in position. The wire mesh screen serves tointercept Yanyjflne hairs that may be released'from the felt andv thereby prevents -any'possibility of such hairs; finding their Vway to the valve seat |09 and interfering with thel eifectiveness of the relief valve. 1

After charging the pump, thepump piston 4I is urged'downward in its cylinder, forcing out the charge of oil past relief valve 45 and throughthe filter head I therebelow, in which any small particles of dirt are abstracted, the pressure from the Y pump being transmitted throughout the length of the header 35 and the main lines 31 and 38. The

pressure is thus transmitted to all of the.measur.

. ing ttings shown inwFigs. 3 to 10 and the location of which in the installation is indicatedby letter N in Fig. 1.

The pistons n3, 203, 22o, 234 and us-offeacn measuring Valve are displaced by the Yapplied pressure against the resistance ofthe rspringV in Fig. 3 and springs 200, 2|9, 231 and H6 to unseat the check valves |21 and H0and to `force' a defi.- niteY charge of oil through the outlet nipples to the bearings. tons |13, 203, 220 and ||3 of Figs. 3,.,4, 5 and- 10,

' respectively, seat against thev respective'ends of their cylinders, and when the end'of'thegroove in which screw 24| is engaged, contacts said.

screw in Figf7, theexcessof the vpump charge beyond the combined volume lof the measuring; Vvalves being forced through by-pass 9|r (Fig. l). .to the pump reservoir 43, a drip/plug and/or check valve (not shown) being provided in saidby-pass, if desired, to relieve the lines of theY excess lubricant after all of the pressure valves 'havebeen each bearing is. supplied independently with,v a-

deilnite measured'quantity of lubricant Without excessive overiiow, regardless in what manner the pump is charged, that is, regardless of whether thepressure transmitted throughv the line risesgraduallyto its maximum or slowly. This operation results from the fact that the pistons of the measuring valves of Figs. 3, 4, 5, 7 and 10 reliably seal the line against further egress of oil measuring valve.

The discharge is limited when pis tof-the bearingzas soonas-the'measured quantity their return,

receive; thenlubricant discharged by the drip plug- While in the second case this lubricant will be Yreturned ltothe'reservoir through the drip plug.``v- ,.v'

These .drip plugs arefmore fully described in application Serial No. 580,668, led August 9, 1922,

Patent No. 1,975,920 ,and in Patents No. 1,632,771V

andeNo. 1,632,772. :They consist of brass fittings 300 having centrali'passages 30| which central passages'maybe substantially completely filled by the pin restriction 302.4 vAn inlet lter 303 protects the drip pluglfromdirt .particles in the line.`

l As shown in Fig. 8,.two measuring valves N are connected in series with the outlet |15, one measuring valve supplyingthe inlet .nipple ofthe last If desired, the last measuring valve N inthe seriesof Fig.'8 may be connected to an end measuring valve, such as shown in Fig.

3v with the outlet member |15 closed, as shown in Fig; 10. However, the construction shown in Fig. 8 inwhich the last valve is connectedto a drip plug Nfis also quite satisfactory, the drip plug relieving the excess lubricant and pressurein the line to permit the pistons |13 to return and also feeding an additional bearing.

The present application is a continuation in part of application Serial No. 596,856, filed Octoberl 25, 1922 Patent No. 2,017,848, and is continued inpart in `application, Serial No. 82,750, filed June 1, 1936, said latter application being particularly directed to the embodiment of Figs. 5 and 7-, and said former application being particularlydirectedto the embodiment of Fig. 10.

1. A fluid 'measuring device'comprising a body having a' cylindrical bore therein and provided with an inlet and-two outlet1ports,a single valve operable ,Kupon a fluid pressure impulse'to move from normal position and force Viiuid from said bore throughA oneof said outlet? ports and subsequently tok establish communication between said inlet port and the'other 4outlet port, and resilient means to return said valve to normal position.

2. A pressure lubricating system comprising a plurality of machine elements to be lubricated, supply means for delivering lubricant under pressure,'and control devices connected therewith, one of said l devices including a pressure operated measuring piston and operating first to deliver a measured quantity of lubricantto its element and secondto cut off its element and open communication to the next device, said first mentioned` control device including a fixed cylinder element .and a reciprocating piston element, said piston contacting withl the walls of said cylinder and upon its discharge stroke delivering said measured quantity of lubricant, said piston consisting of a single unitary piston element.

A lubricant measuring device having a casing with anxinlet and two outlets, a single unitary integral piston mechanism in said casing operated by pressure fluidentering said inlet, for delivering a predetermined charge through one outlet andthen closing the same and placing theV other outlet in open communication with said inlet'. as long as the pressure is maintained, and

Aspring vmeans for returning saidmechanism to initial position when the pressure is relieved.

4. A lubricating system comprising a plurality of elements to be lubricated, a source of lubricant under pressure, a single conduit connecting said vsource with said elements in lseries andasingle runitary integral piston measuring valve means operable automatically upon discharge of lubricant under pressure from said source to said; rst

,element and then successively to the remaining element. ,t

5. A lubricating system comprising a plurality of elements to be lubricated, a conduitl connecting said elements in series, a source of-.lubricant under pressure, and a single unitary integral piston measuring valve means operable automatically upon discharge of lubricant under pressure from said source to saidconduit to supply a measured charge .from said Asource toy the iirst of 'said elements and. then successively to the remaining element. t

6. In a lubricating system, a metering valve de- -vice having a casing withv a cylindrical bore, an inlet port to said bore and two outlet ports from said bore, a cylindricalpiston unit in said bore .having substantially the same diameteras said bore, the periphery of the piston unit contacting with said bore, said piston unit being displaceable in one direction by. the introduction of lubricant under pressure through said inlet port and during such displacement causing a measured discharge of lubricant from said bore through one of said outlet ports, and also uncovering the second outlet port to permit. flow of lubricant from said inlet port to said second mentioned out- -let port through said bore and coil spring means to return said piston after said displacement, said bore being of a diameter suicient to permit slow by-passage of lubricant around said'piston unit when returned by said coil spring means.

7. In a lubricating system, a metering valve device having a casing Vwith a cylindrical bore, an

. inlet port to said bore and two outlet ports from lubricated,l supply means 'for delivering lubricant said bore, a cylindrical piston unit in said bore having substantially the same diameter `as said bore, the periphery of the pistonl unit contacting :with said bore, said piston unit being displaceable `in one direction by the introduction of lubricant under pressure through said inlet port and during such displacement causing a measured discharge of lubricant from said bore Vthrough one of said outlet ports, and also uncovering the second outletport to permit ow of lubricant from said inlet port to said second mentioned outlet port through said bore and coil spring means to return said piston after said displacement, said bore being of a Ydiameter sufficient to permit slow by-passage of l -lubricant around said piston unit when returned '-by' said coil spring means, said inlet port being under pressure, and valve control devicesyeaoh device normally cutting off all devices morerel mote from the supply and operating rst toV dev:L

liver a measured quantity of lubricant to its machine element and second to open communication to the next device,v and a highly restricted relief means having a fixed obstructing effect connected to the last device and feeding one of Ysaid machine elements, said last-mentioned device permitting gradual reductioncf lubricant pressure in said 1system after operation of each of ksaid devices, .whereby said devices mayreturn to their original ,position to be ready forthenext delivery of -lubricant under pressure. v j

, 9, AV pressure lubricating system comprising a .plurality of machine elements to; be lubricated, supply means for delivering lubricant under pressure and a series-of ,devices comprising control all devices moreremote from the supply and operati-ng rst to deliver lubricant to its bearing and second to establish an operative connection with `the next device, and highlyobstructed fixed re- -,devices,l each control device normally cutting off ,l0

strition relie-f` means at the end of -the conduit 15 to the supply means, said relief means Arelieving lubricant pressure from said system following the `,operation of the most remote device and permitting all of saiddevices to return to their origsame and placing'the other outlet in open comrnunication with said inlet asV long as the pressure is maintained, and means for returning said lindrical casing with an inlet and two outlets, and

:mechanism in said casing operated by pressure -fluid entering saidinlet, for delivering a predetermined charge through 1 one outlet and then closing the same and placing the other outlet in saidcasingaspring urging said piston toward said inlet, and a rigid'mechanical connection between said piston and said valve, said valve controllingfon'e of said outlets, and said piston wheni ':moved away from the inletcontrolling the other outlet; Y f

`13. Alubricant measuring device comprising a closed body normallylcontaining lubricant andL having three ports, two of said ports being con- 55 nected tofpar'ts` tobe lubricated, andv Vmovable Valve means in said body operable upon forcing l' lubricant Yunder-pressure into said body through 2 the-'third 'of lsaid ports to force a predetermined quantity qfiubrieanr from said body through 6 -one 'of said two ports tof one of the partsto be @lubricated andthereafterfopening a passageway through said body' to the other of said two ports, thereby totvfpeimitfkflow of'lubricant from saidb65 ,L third port through said body and said other of ,if said tw'of "portsxf, saidA iirstrl two ports being each `l."-pr'ovidedzwithv a checl; valve. v t v 14. A lubricant measuring deviceadapted to be i connected with a remote part to receive lubricant, 70 comprising a. cylindrical casinghaving an inlet fxand two outlets, means for connecting one of said outlets .to 'a near .'part to be suppliedwith lubricant, the other of said outletsfbeing adapted to be inal positions uponV cessation .of pressure at said 20 ventering said inlet, for delivering a predetermined l25 charge through one outlet andV then closing the mechanism to initial positionV when the pressure 30 'is relievedv including a leakage passing along the lperiphery of said piston, said passage taking the 'fo-rm of a recess on the interior side. of the casing.

, 1l. A lubricant measuringdevice having a cy- 35 `open communicationY with said inlet, said inletiio .being at one end of the casing, Vone outlet being at the other end, and the'other outlet being at the `side of' the casing. .I f i y 12. `A lubricant measuring device comprising a :casing having a'ninlet and two outlets, a valve'45 axially'slidablev in said casing, a piston slidable in connected to said remote part, and said inlet=- to a source of lubricant unden'pressure, and means in said casing operative upon reception of Y lubricant under pressure through said inlet to cated, a piston valve reciprocable in said chamber, a cap securedat the upper end of said chamber,`resilient means for forcing said valve toward said cap, an inlet port in said cap, a plurality of outlet ports for said vchamber closed when said valveis in its uppermost position, means to seal at least one of said outlet ports when thev valve is in its lowermost position, and means permitting a slow by-pass of lubricant round said valve Y Vwhen itis forced upwardly by said resilient means.

16. A measuring device for use in a central lubricating system comprising a cylinder having an inlet port'and two outlet ports. and a piston .valvereciprocable in said chamber, said valve having an elongated axial projection adapted -toV close one of said outlet ports, said valve being adapted to force lubricant from said chamber to said one lofv said outlet ports upon supplying lubricant under pressure through said inlet port, and subsequently to open the other outlet port. Y

17. A lubricant charge measuring device for use in a central lubricating system, comprising a cylindrical chamber,v means forconnecting said chamber with a bearing to be lubricated, a pistonv valve reciproc'able in `said chamber,'a cap secured at the uppereend of said chamber, a spring 'for forcing said valvetowardsaid cap, an outlet port in said chamber open only when said valve is in its lowermost position, and. means .to seal the connection to the bearing when the valveis Ya constructionto permit slow by-passage lubricant around said valve when forced upwardly by said spring. Y

i8. A lubricant measuring devicerhaving a casing with an'inlet and twoV outlets, anda. single element-in Asaid casing operated by the pressure of uid *entering* said inlet, for delivering a predetermined chargethrough one outlet and then closing the saine and at approximately thesame vtime Aplacing the other outlet in open communication Vwith saidinlet. y Y 19. In a systemv of theV class described, the combinationof a plurality of machine elements to be lubricated,lubricant measuring devices associated with said elements, a lubricant reservoir, a lubricant pump communicating therewith, conduits connecting said devices in'` series to said V pump, means in eachof said deVic'es'adapted to 265 cut off now of'lubricant to vthe devicesV following in the series until charges ofV lubricant have -been forced into their associated elements, and

relief means operable upon flow of lubricant from the last device of saidv series including a highly restricted iiow conduit means permitting return .flowto saidreservoir automatically after operation ofv said last device, said highly restricted 20. A iluidrmeasuring device 'comprising a body having a cylindrical bore therein, an inlet vport and two outlet ports in said body, and a single valve reciprocable in 'the bore of said body and spring' pressed to'close both outlet ports and adapted successively to uncover the rst of said outlet ports, and then to open the second outlet port upon a fluid pressure impulse applied at said inlet port, and'subse'quently to close the second outlet port, and then close therst outlet port 2.10

. bination of a plurality of machine elements requiring lubrication, a charge measuring progressive measuring valve device associated with each said respective element, conduit means connecting said devices in series, a source of lubricant under pressure connected to the rstfdeviceof yits of said elements and having an outlet port toY the series, each of said devicesV having a second outlet port opened after discharge through said first outlet port connected to the inlet port-'of the devicernext in series, andratdripplug affording a fixed highrestriction in theline of flow from the second outlet port ofV the last device of vthe series to permit extrusion of lubricant to va suitable place of disposal 'and to relieve pressure in said device and permit return thereof, said drip plug serving slowly to feed lubricant during continuation of pressure application from the source after operation of said rlast device and then serving slowly to relieve lubricant pressure in the conduits permitting return of the devices after cessation ofpressure applicationv from the source. p Y Y 23..In a.Y centralized lubricating system, (a measuring valve vdevice having a casing-provided with an interiorchamber, a vpiston invsaid interior chamber, an inlet port feeding lubricant under pressure to said piston and a plurality oft having an interior chamber receiving agpiston` making discharging and return strokes, a ysingle inlet port and a plurality of l outletports, ,saidV inlet port feeding lubricant under pressure vto V`said piston, and valvermeansfactuatedf by said piston to successively open and closersaid outlet. ports upon its discharging stroke.'v rg 25. In a lubricating system, in-combination, a

plurality of bearings, a distributor valve; including a discharging metering piston, bearing conduits Vconnecting said distributor valve, to said-.,165

bearings, `an intermittently discharging pump remote from said distributor valve, Va pump conduit connecting said pump to said distributor valve and a return spring for said piston, -said piston being moved forwardly to discharge position upon..

discharge from said pump into said pump conduit, said distributor v alve being provided with a plurality of outlet'ports, .one toveach bearing conduit, said piston discharging directly intol at `least, one o isaid outlet. portsand.. uncoveringt another outlet port during its discharge movement, whereby a discharge will take place therethrough from said pump conduit.

26. A pressure lubricating system comprising a plurality of machine elements to be lubricated, a single conduit communicating with all said elements, supply means for delivering lubricant under pressure to one end of said conduit, and a valve control device in the conduit adjacent one of said elements, said device normally cutting 01T that portion of the conduit more remote from the supply and operating under a pressure impulse rst to deliver a measured quantity of lubricant to its own element and second to cut off its element and simultaneously open the conduit beyond, said control device including a fixed cylinder element and a reciprocating piston element, said piston contacting with the walls of said cylinder and upon its discharge stroke delivering said measured quantity of lubricant, said piston consisting of a single unitary piston element.

27. A pressure lubricating system comprising a plurality of machine elements to be lubricated, a single conduit communicating with all said elements, supply means for delivering lubricant under pressure to one end of said conduit, and a valve control device in the conduit adjacent one of said elements, said device comprising a reciprocable piston valve member normally cutting oli that portion of the conduit more remote from the supply and operating under a pressure impulse rst to deliver a measured quantity of lubricant to its own element and second to cut oi its element and simultaneously open the conduit beyond, said controll device including a xed cylinder element and a reciprocating piston element, said piston contacting with the walls of said cylinder and upon its discharge stroke delivering said measured quantity of lubricant, said piston consisting of a single unitary piston element.

28. A measuring valve construction comprising an elongated cylindrical-like body having an upper chamber and a lower chamber, a piston dis'- placement measuring valve device in the upper chamber, a connecting passage of reduced diameter between the upper chamber and the lower chamber, said piston being provided with a stem extending through said passage, and the lower part of said stem and the lower part of said passage being respectively provided with cooperating valve and valve seat means, a coil spring device to bias the piston upwardly to one end of the upper chamber and an inlet cap attached to the top of said cylindrical-like body containing a threaded inlet nipple connection, said stem being of such length and said valve and valve seat means stopping upward movement of the piston when it is adjacent but slightly spaced and out of contact with said cap, said construction including a bottom seat for the piston valve device at the bottom of the upper chamber and a groove means extending longitudinally in said upper v chamber the entire length thereof to below said bottom seat to permit leakage past the piston in said upper chamber when said piston is returned by said coil spring, said cylindrical-like body being provided with a plurality of outlets through one of which at least the lubricant is forced by downward movement of said piston against said spring, ilow through said passage being cut oi upon return of said piston by cooperation between said valve and said valve seat means, said piston controlling the sequence of ow through said outlets, and the discharge pressure and quantity of lubricant discharged through at least one of said outlets.

29. In a lubricating installation, having a reservoir, a piston pump supplied from said reservoir, a conduit leading toward bearing means and means for actuating said pump to intermittently discharge lubricant into said conduit, a measuring 'valve iitting unit having an elongated cylindrical body with threaded inlet nipple means for connection to said conduit and threaded outlet nipple means for connection to said bearing means, said body including a relatively large diameter cylindrical chamber inlet port means in said inlet nipple means and outlet port means in said outlet nipple means, a reciprocating piston valve consisting of a substantially solid metal cylinder provided with a return spring in said chamber, the sides of which piston have a metallic contact with the Walls of said chamber, said piston valve closely tting therewithin with sufficiently small clearance to permit leakage of lubricant thereby between the sides of the piston and the walls of the chamber, whereby said return spring may return said piston displacing the lubricant from the inlet side of the piston to the outlet side through said clearance, said piston subsequently moving forwardly against said spring to carry forward said displaced lubricant and to cause it to ilow outwardly through said outlet port means upon intermittent pressure application to its inlet face by said pump, said outlet port means including a plurality of outlet ports leading to different bearings, said unit being provided with means to assure a division of lubricant between said outlet ports upon each pressure movement of said piston valve and cutting off of all of said ports when said piston valve has completed its return stroke.

GEORGE BIJUR, Eecutor of the Estate of Joseph Bigiur, Deceased. 

